I was logged into my server earlier today, and now when i go to SSH i get the error "SSH Connection Refused" i'm running Ubuntu Hardy. The server is still working, and serving web-pages i just cannot get in. Last time i was on the server, i didn't change any of the iptables. Is there anyway to troubleshoot this issue? Update: I do have access to a browser based console to the server. Though it is painfully slow, i can investigate further.
Update: It looks like ssh isn't running on my port when i use lsof. I ran sudo /etc/init.d/ssh restart and nothing happens, and still nothing is running on my ssh port. When i check /var/log/auth.log i get:
sudo: pam_unix(sudo:session): session opened for xxxx root by yyyy(uid=0) sudo: pam_unix(sudo:session): session closed for user xxxx by yyyy(uid=0)
which looks like it is opening then immediately closing the session.